FR872761A - Montage équilibré à changement de fréquence pour ondes ultra-courtes - Google Patents

Montage équilibré à changement de fréquence pour ondes ultra-courtes

Info

Publication number: FR872761A
Authority: FR; France
Prior art keywords: ultra; shortwave frequency; changing; balanced mount; mount
Prior art date: 1940-05-30
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1940-05-30

Filing date

1941-05-29

Publication date

1942-06-18

1941-05-29 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1942-06-18 Application granted granted Critical

1942-06-18 Publication of FR872761A publication Critical patent/FR872761A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1416—Balanced arrangements with discharge tubes having more than two electrodes

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Superheterodyne Receivers (AREA)

FR872761D 1940-05-30 1941-05-29 Montage équilibré à changement de fréquence pour ondes ultra-courtes Expired FR872761A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL611701X		1940-05-30

Publications (1)

Publication Number	Publication Date
FR872761A true FR872761A (fr)	1942-06-18

Family

ID=19788122

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR872761D Expired FR872761A (fr)	1940-05-30	1941-05-29	Montage équilibré à changement de fréquence pour ondes ultra-courtes

Country Status (4)

Country	Link
US (1)	US2285372A (es)
FR (1)	FR872761A (es)
GB (1)	GB611701A (es)
NL (1)	NL58997C (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL58327C (es) *	1940-12-05
US2434474A (en) *	1941-01-28	1948-01-13	Hartford Nat Bank & Trust Co	Circuit arrangement for ultra short waves
BE444311A (es) *	1941-01-31
US2516990A (en) *	1942-09-14	1950-08-01	Rca Corp	Ultra high frequency mixer circuits
US2479537A (en) *	1942-12-30	1949-08-16	Gen Electric	Detector-oscillator circuit for ultra high frequency receivers
US2461306A (en) *	1943-05-31	1949-02-08	Rauland Corp	Oscillator-amplifier radio circuits
NL61584C (es) *	1943-07-23
US2591983A (en) *	1943-11-12	1952-04-08	Hartford Nat Bank & Trust Co	Mixing circuit arrangement
US2469222A (en) *	1943-12-01	1949-05-03	Rca Corp	Crystal rectifier converter
US2508048A (en) *	1944-12-21	1950-05-16	Rca Corp	Frequency converter circuits
US2457008A (en) *	1944-12-21	1948-12-21	Rca Corp	Frequency converter circuit
US2507995A (en) *	1947-11-12	1950-05-16	Avco Mfg Corp	Television receiving system
US2645710A (en) *	1948-03-12	1953-07-14	Hartz Julius	Radio transmission and carrier wave modulation

0
- NL NL58997D patent/NL58997C/xx active
1941
- 1941-03-21 US US384482A patent/US2285372A/en not_active Expired - Lifetime
- 1941-05-29 FR FR872761D patent/FR872761A/fr not_active Expired
1946
- 1946-06-26 GB GB19072/46A patent/GB611701A/en not_active Expired

Also Published As

Publication number	Publication date
US2285372A (en)	1942-06-02
GB611701A (en)	1948-11-02
NL58997C (es)

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